Answer:
1/2 is the simplified from of 50/100 so it is equivalent
Step-by-step explanation:
First, find what percentage of students had 3 or more by adding up your known percents:
45% + 23 % + 21% + x% = 100%
x = 11%
Since you're given that 96 students had 2 or more, you add up the percentages of 2 and 3 or more:
11 + 21 = 32%
Now set up a proportion that relates it to the whole:

This will allow you to find the total number of students at the school.
Cross multiplying and solving for x results in 300 total students.
Question 1:
45% had one or more absences. 45% of 300 students is
135 students.
Question 2:
As we found before, 11% of students had three or more. 11% of 300 is
33 students.
To the nearest whole number would be 57, because .6 rounds up to the next whole number
They are both in the thousands category
The answer id 12 meters.divide -2x^2+20x+48 by 2 to get x alone and then umbrella